121434552 has 80 divisors (see below), whose sum is σ = 345329160. Its totient is φ = 39859776.

The previous prime is 121434541. The next prime is 121434559. The reversal of 121434552 is 255434121.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121434559) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 42018 + ... + 44814.

Almost surely, 2^121434552 is an apocalyptic number.

121434552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121434552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172664580).

121434552 is an abundant number, since it is smaller than the sum of its proper divisors (223894608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121434552 is a wasteful number, since it uses less digits than its factorization.

121434552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882 (or 2869 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 121434552 is about 11019.7346610524. The cubic root of 121434552 is about 495.2001394540.

Adding to 121434552 its reverse (255434121), we get a palindrome (376868673).

The spelling of 121434552 in words is "one hundred twenty-one million, four hundred thirty-four thousand, five hundred fifty-two".